Well my build is coming along nicely, block is still at the machine shop. He's also going to turn the rear bearings for the balance shafts to allow the use of my NEW shafts.
These were made with the tools pictured, some sanpaper (to polish it up some) And a bench grinder in combo with some straight edges and a right angle to get the face perfect (dont want any more imbalance)
All for free, just took me about 4 hours to get everything perfect. (this was trial and error for me, if i did it again it would take probably 2 hours)
And heres the stage 3 cams sitting next to stock
<img src="http://memimage.cardomain.net/member_images/3/web/831000-831999/831395_11_full.jpg">
Lol meant to put balance SHAFT self removal as the title... Oh well
<img src="http://memimage.cardomain.net/member_images/3/web/831000-831999/831395_11_full.jpg">
so when you remove these eco shafts... is it as much weight as say the 2.4 shafts etc?
i know the 2.4 ones are heavy as hell... and it would be a very nice mod to get rid of all that rotating weight, although i have yet to try it out for myself.... i cant wait to do it.
nice job.
UFlip06 said it best: Just look underneath the engine and if you see big hairy balls it's a 2.4 Twin Cam, if they're shaved it's an Ecotec and if you see nothing it's a 2200!
Between the 2 of them i lost about 9lbs of rotating mass... Should make a huge diff in the high rpms
<img src="http://memimage.cardomain.net/member_images/3/web/831000-831999/831395_11_full.jpg">
I was wondering when someone would get around to doing it themselves
Be sure to fillet (round) the edge of the idler shafts.
Thank you, i was hoping you would chime in since you have done this before.
Yea i spent a couple hourse extra after i posted that polishing up the back and sides.
I could write up a how-to if people are interested, but i guess it needs to still be stressed that this is not a proven thing, and could theoretically prematurely wear out the bearings. Which fortunately for us are replaceable
<img src="http://memimage.cardomain.net/member_images/3/web/831000-831999/831395_11_full.jpg">
interested in a how to once you get the engine togeather.
Ill throw a write up here in a while, but i really gotta stress that this mod is still not proven
<img src="http://memimage.cardomain.net/member_images/3/web/831000-831999/831395_11_full.jpg">
how soon before it will be proven?
when someone has about 30,000 miles on the setup
<img src="http://memimage.cardomain.net/member_images/3/web/831000-831999/831395_11_full.jpg">
that looks like an awesome job on those idler gears. definatly do a picture-based howto!
Im wondering tho what your using for the oil passages, i didnt think turning the rear bearings would be enough. I was hoping to have them tapped and just insert a bolt or threaded rod.
now show us the bearing those stub shafts spin against.
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